sg_read_block_limits (8)

sg_read_block_limits [--help] [--hex] [--raw] [--verbose] [--version] DEVICE

Send a SCSI READ BLOCK LIMITS command to DEVICE and outputs the response. This command is defined for tape (drives) and its description is found in the SSC documents at http://www.t10.org .

Arguments to long options are mandatory for short options as well.

-h, --help

output the usage message then exit.

-H, --hex

output response in hex (rather than decode it).

-r, --raw

output response in binary to stdout.

-v, --verbose

increase the level of verbosity, (i.e. debug output).

-V, --version

print the version string and then exit.

The exit status of sg_read_block_limits is 0 when it is successful. Otherwise see the sg3_utils(8) man page.

It is usually okay to use no options. Here is an invocation (on the first line following the "#" command prompt) followed by some typical output:

   # sg_read_block_limits /dev/st0

Read Block Limits results:

        Minimum block size: 1 byte(s)

        Maximum block size: 16777215 byte(s), 16383 KB, 15 MB

Written by Douglas Gilbert.

Report bugs to <dgilbert at interlog dot com>.

Copyright © 2009-2012 Douglas Gilbert

This software is distributed under a FreeBSD license. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

sg3_utils(sg3_utils)